Life Cycle Assessment on Conversion to LED in Road Lighting

Onaygil S., Yurtseven M. B., Berberoğlu E.

Lux Europe 2022 14th European Lighting Conference, Praha, Czech Republic, 20 - 22 September 2022, vol.1, pp.227-233

  • Publication Type: Conference Paper / Full Text
  • Volume: 1
  • City: Praha
  • Country: Czech Republic
  • Page Numbers: pp.227-233
  • Istanbul Technical University Affiliated: Yes


Nowadays, the environment, economies and social issues affect each other and cannot be considered separately. For this reason, sustainability is an issue that is gaining importance day by day. Life cycle sustainability assessments should be done with a holistic approach, taking into account the environment, economies and social factors.

In this study, as a sample application, road lighting design was done using high-pressure sodium vapor lamps (HPSVL) and LED luminaires on an existing road, and the luminaires used in the design were evaluated in terms of environmental, economic and social aspects. For this purpose, calculations and evaluations have been carried out on an existing M2 lighting class road for which the LED conversion project was done. The requirements for EN road lighting standards that were valid in Turkey were fulfilled to a minimum extent within the scope of energy saving. In practice, the conversion to LED was taken as a basis by simply changing the luminaire, without changing the lighting poles in the existing installation. The use of HPSVL and LED luminaires in an existing road lighting through a sample application has been evaluated in terms of environmental greenhouse gas emissions, the economics of the life cycle cost approach and the social effects by forming opinions. From the evaluations made regarding raw materials, supply and process information, the data was obtained from a domestic manufacturer and evaluation was made in accordance with field studies. As a result, it has been determined that the global warming potential of the installation with HPSVL is 44% higher than the installation with LED. In addition, as a result of the LCA for HPSVL and LED luminaires, it was calculated that the operating cost is much higher than the maintenance and repair, investment and salvage value costs.

Keywords—Life Cycle Assessment; Economy; Environment and Energy; Energy Efficiency; Road Lighting; Conversion to LED